A MULTIBAND POWER AMPLIFIER USING A SWITCH-BASED RECONFIGURABLE MATCHING NETWORK FOR OPTIMIZED POWER PERFORMANCE

被引：5
|
作者：
Lee, G. [1 ]
Jung, J. [1 ]
Jang, J. [1 ]
Song, J. [1 ]
机构：
[1] Gwangju Inst Sci & Technol, Sch Informat & Commun, Kwangju 500712, South Korea
来源：
MICROWAVE AND OPTICAL TECHNOLOGY LETTERS | 2014年 / 56卷 / 12期
关键词：
multiband power amplifier; long-term evolution; collector efficiency; switch; reconfigurable output matching network;
D O I：
10.1002/mop.28730
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
A multiband power amplifier (MBPA) with a switch-based reconfigurable output matching network is presented for long-term evolution handset applications. The MBPA is designed in a dual-path configuration to improve efficiency in two different power levels for different frequency bands of the evolved UMTS terrestrial radio access (E-UTRA). The dual-path MBPA with the switch-based reconfigurable output matching network delivered a collector efficiency of 31.8-38.5%, while satisfying the linearity specification (i.e., an adjacent channel leakage ratio less than -30 dBc) at an output power of 26.5 dBm across the five popular frequency bands of the E-UTRA. In the low power mode, the MBPA delivered a collector efficiency of 21.8-35.4% with an adjacent channel leakage ratio smaller than -32.3 dBc at an average output power of 18 dBm. (C) 2014 Wiley Periodicals, Inc.
引用
收藏
页码：2881 / 2884
页数：5
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